Control-lock.



' W. MAOGLASH'AN.

CONTROL LOGKJ APPLICATION FILED -MAR.9, 1914.

1,1 1 3,230. Patented 00c. 13, 1914.

' .1 Original application filed February 5,

To all whom it may concern UNITED s'rAtrEs PAT NT] OFFICE.

WILLIAM MAOGLASHAN, OI. DETROIT, MICHIGAN, ASSIGNOR TO THE STUDEBAKER CORPORATION, OF SOUTH. BEND, INDIANA, A CORPORATION OF NEW JERSEY.

coNraoL-Loox.

Be it known that I, WiLLIAM 'MACGLAS- HAN, a citizen of the United States of America, residing at Detroit, Wayne county,

Locks, of which the following is a specificac y y Y This invention relates to amechanical con- .1

State of Michigan, have invented certain new and usefullmprovements in Controltrol for motor vehicles or more. properly to means for locking the control when the brake is applied, the present application being a division of my application No. 746,330, filed February 5th,-19l3, entitled Control.

The harmful effects resulting to motor v ehicles from the application of the brake" 1n opposition to the motor, are well known, and

the object of the present invention is to prevent this occurrence. To this end I provide a connection between the emergency brake lever and the control lever by means ,of which the latter is thrown to neutral position when the brake is applied and held at neutral, as the pressure on the brake lever and the tension of the brake is increased without under these circumstances in any way increasing the pressure on the control lover or the resistance to the application of the emergency brake. This device prevents damage to the transmission and possible burning of the motorby accidental use of the emergency brake in opposition to the motor.

' 4 Fig. 2 is a central, vertical section showing In the .accompanying drawings a controller embodying the features of my invention in its preferred form is illustrated.

Figure 1 is a side elevation of the control looking from the right side of the vehicle.

the lock.

Referring to' the drawings by numerals, each of which is applied to the same or equivalent parts of the difi'erent figures of the drawing, the control lever 1 and the emergency brake lever 2 are mounted on a single transverse shaft 3 carried by a bracket '4 having a base plate 5 adapted to be secured to one of the members of the vehicle frame. Rigidly mounted on this bracket, having depending lugs 6 and 7 which are secured to upright lugs 8 and 9 on the bracket, is a slotted plate 10 which servesas a guide for the brake and control levers. Thelatter extends upward through a U-shaped slot 11 in the plate, and the emergency brake leverrides in another slot in the same plate;

, Two crank arms 14, 14 are mountedto rotate relatively to the shaft 3. The controller shaft or a shaft. which is geared thereto, in-

dicated by reference character 16, is provided with two crank arms 17 and 18 rigidly secured thereto and placed substantially at right angles one to the other. Of these one is connected by the rod 19 to one arm 14, and the other by the rod 20 tothe other arm 14. The controller lever 1,'in addition to being pivoted to swing about the shaft 3, is also pivoted by means of the pin 21 and the jaws 22 toswing in the plane of the lengthof the shaft 3, i. e., to swing laterally. The arms 14 are provided each with jaws 23 laterally disposed and opening toward the lever 1.

When the lever 1 is at the rear end of the U' shaped slot 11, i. 0., at the base of the U, the controller is in neutral position, 2'. 6.,' no

current is passing through the motor; and

in this position both of the arms '14and the jaws 23 are alined with the lever 1, so that that lever may be moved laterally into engagement with either jaw, and .when thus engaged may be used to rotate the arm carrying that jaw in a forward direction and to move that jaw backward to its original position.

A full explanation of the operation of the device will be found in the parent application.

Eor the purpose of throwing'the control out and stopping the motor when the emergency brake is applied and for locking the control at neutral as long as the-brake is on so the emergency brake and drive cannot operate simultaneously, the control lever 1 is provided with a cam membe? 25 rigidly secured thereto, and the brake lever 2 is provided with an arm 26 having a follower member 27. Pivotally mounted on the fixed bracket 28 is a swinging arm29 carrying a cam follower 30 to cooperate with the cam 25, and the follower 27 is so placed as to cooperate; with the bearing face 31 of the lever 29. The cam 25 is so formed that the lower portion of its surface 32 is inclined to the arc swung by the roller 30 when the arm 29 is rotated, so that when the brake is put on, the controller being forward, the lever 26, being thrown up, swings the arm 29 with the roller 30 upward about the cen- Patented 00 6.13, 1914.

1918. Serial No. 746,330. Divided and this application filed Hatch 9,

1914. Serial No. 823,305. g I l.

' sible to put the brake on when the ter 33, engaging the inclined cam surface 32 and throwing the controller back to neutral, the upper point of the surface 32 being so placed that as the roller rides over th s point, the lever 1 is forced to neutral position, but beyond this point the surface 34 in the form of an arc concentric with the axis 33, and as the pressure on the brake is increased and the brake lever swings backward, the control lever 1 is merely held in neutral position and remains locked in that position until the brake is released. 7

It will thus be apparent that it is imposjis in any position other than neutral, for as the brake is applied, the control lever is operated by the cam and follower as described, and immediately thrown to neutral position, after which the brake may be forced downward with sure, the control lever remaining position. sulting from the operation of the motor against the brake are avoided.

I have thus described specifically a single embodiment of my inven ionin order that its nature and operation-may be clearly understood. However, the specific terms herein are used in their descriptive rather than in neutral n their limiting sense and the scope of the invention is defined in the claims.

I claim: v. 1. A control for motor vehicles consisting of a control lever, nected thereto, a brake lever, a cam carried by the-control lever, a follower, means conpath,

straining the same to move on a fixed. and means connected to the brake lever for operating the follower to engage the cam and throw the control lever to neutral when the brake lever is operated.

f2. A control for motor vehicles 0 a control lever, a brake lever, a cam on (topic: of this patent may be obtained for five cents, each, by droning the control any degree of pres throwing the control In this way the various ills reofacontrol lever,

applied lower when the controller is in .tion. 4 1 p ,Signedby me at Detroit, Michigan, this 80 controlling means conconsisting the control lever a follower, and means carried by the bralxe lever for o crating the follower to throw the control ever to neutral when the brake is operated.

3. A control for motor vehicles consisting of a control lever a brake lever, a cam on the control lever, a follower, and means carried by the brake lever for operating the follower to throw the control lever to neutral when the brake is operated, the cam being shaped to permit the follower to swing freely when the control lever is in neutral position and to lock the lever in that position when the brake is on.

4. A control for motor vehicles 'consistin of a control lever, a brake lever, a pivote arm carrying a follower, follower means on the brake lever for swin g the arm, and a cam on the control lever to be engaged b the follower when the brake is applied:

lever to neutral position.

'5. A control for motor vehicles consistin a brake lever, a pivote arm carrying a follower, follower means .on

the brake lever for swinging the arm, and

a camon the control lever to be engaged'b the follower when the brake. is applied: throwing the control lever to the direction of; the traverse of the roller as the brake is conforming tothe path of the fol-' normal .posi- 26 day of.'Feb.-1914.

I WILLIAM MAOGLAS'HAN.

Witnesses;

JAMES E. SPENCER,

GUY M. EGGLESTON.

Washington, D. 0,"

neutral position, the cam having a surface inclined to the path of the follower, andv a surface beyond said inclined surface in 

